body{
    margin: 0;
}
.head{
    width: 100%;
    height: 120px;
    background-color: rgb(0, 128, 128);
    position: fixed;
    z-index: 100;
}
.head font{
    color: #fff;
    font-size: 26px;
    line-height: 120px;
    padding: 0 30px;
}
 .content{
  
    height: 800px;
    top: 120px;
    width: 100%;
    background-color:rgb(204, 204, 204);
}
.content .left{
    width: 220px;
    height: 100%;
    background-color: white;
    float: left;
    top: 120px;
    position: fixed;
   
}
.content .right{
    margin-left: 120px;
    margin-top: 130px;

}
.left ul{
    list-style: none;
    margin-top: 0px;
}
.left ul li{
    line-height: 3em;
   text-align: center;
    border-bottom: 1px solid #cccccc;
    position: relative;
    margin-left: -40px;
}
.right{
    position: absolute;
   left: 120px;
    margin: 10px;
    
    background-color: white;
    width: 1280px;
    height: 621px;
    border-radius: 10px;
}
.left>ul.left-nav>li.current,
.left>ul.left-nav>li:hover{
    background-color: #cccccc;
    color: #ffffff;
}
.left > ul.left-nav > li.current a,
		.left > ul.left-nav > li:hover a {
			color: #ffffff;
}
.button1{
    margin-top: 20px;
    margin-left: 30px;
    
}
.button1 button{
    width: 100px;
    height: 30px; 
   
    background: white;
    border-radius: 10px;
    cursor: pointer;
    border: 1px solid #999;
    position: relative;
    
    padding: 0;
}
.table1{
    margin-top: 10px;
    width: 100%;
    border-collapse: collapse;
    border-color: grey;
}
table{
    box-sizing: border-box;
    border-spacing: 2px;
    border-color: grey;
    
}
.table1 td{
    border: 1px solid gray;
    text-align: center;
}
.table2{
    width: 100%;
    border-collapse: collapse;
    border-color: grey;
    
}
